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(N0 ModeL) 2 SheetsSheet 1.

0. HAPFOKE,

BURNER.

No. 606,136. Patented June 21,1898.

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, 2 Sheets-Sheet 2. 0. HAF'FOKE.

BURNER.

No. 606,136. Patented June 21,1898.

z NORRIS Frrzns 00., Mo

Toumo WASHINGTON u c Nrrn TATES CHARLES HAFFCKE, OF BALTIMORE, MARYLAND.

BURNER SPECIFICATION forming part of Letters Patent N o.- 606,136, datedJune 21, 1898. Application filed May 15, 1897- Serial No. 636,663. (Nomodel.)

To all whom it may concern.-

Be it known that 1, CHARLES HAFFOKE, of the city of Baltimore and Stateof Maryland, have invented certain Improvements in Bu rners, of whichthe following is a specification.

This invention relates to burners which are adapted for the combustionof gas intermingled with atmospheric air, as will hereinafter fullyappear.

In the description of the said invention which .follows reference ismade to the accompanying drawings, forming a part hereof, and in which-Figure 1 is a top view of the improved burner. Fig. 2 is a section ofFig. 1, taken on the dotted line mm. Fig. 3 is a section of Fig. 2,taken on the dotted line y 1 Fig. 4 is a top view of the burner, showingthe same as somewhat modified in construction. Fig. 5 is a section ofFig. 4, taken on the dotted line z 2. Fig. 6 is an enlarged sectiontaken on the dotted line o 42.

Referring now to the drawings, A is a baseplate, shown as square, havingraised sides a and a covering-plate B, which together form a receptacle0 for intermingled gas and air introduced thereto through a duct D. Atthe outer end of the duct D is inserted a funnel-. shaped pipe E, havinga boss I) at the center,

into which is screwed the gas-cock F or a pipe leading from a cock. Theopening 0 in the inner end of the cock F is contracted, so that only asmall supply of gas is admitted to the duct D. The portion of the head daround the boss I) is perforated for the admission of air to the duct.Consequently the air and gas intermingle in the duct and the mixturepasses into the receptacle C.

The base-plate A has a number of holes f, and the covering-plate B isprovided with the same number of nozzles G, which are directly over theholes f.

H H are tubes of some comparatively soft metal, such as copper orwrought-iron, which are passed through the holes f and the nozzles G andfastened at their ends, which project above the nozzles and below thebase-plate by means of' any suitable expanding tool. The nozzles Gr arefrusto-conical, to give them strength.

The tubes H, which are over the duct D, cannot pass through thebase-plate A, as do of gas and air to the interior of the tubes H.

To equally distribute the mixture of gas and air to the tubes H, I placein the receptacle C a plate I, having a flange i to support it. Theholes in this deflecting-plate through which the tubes H pass areslightly larger than the tubes. The mixture of gas and air therefore hasto pass around the tubes to get to the apertures h in the same.

The base-plate A has a series of lugs J, whereby the burner may besecured in a stove of suitable description.

Combustion of the mixture of air and gas takes place at the upper endsof the tubes H, and as the said tubes become heated a strong upwardcurrent of air is established in the tubes, which hastheeffect ofincreasing the velocity of the gaseous mixture from the receptacle Cabove the deflecting-plate I to the said tubes through the apertures h.The upward current of air in the tubes H also serves to provide foranydeficiency in the volume of air first admitted to the duct D throughthe perforated end or head of the funnel E and effects completecombustion of the gas supplied. In other words, with the secondaryintroduction of air efiected as described complete combustion of the gastakes place.

Referring now to Figs. 4 and 5,-it will be seen that the receptacle forthe mixed gas and air is circular instead of square, and thedefleeting-plate I, which 'is also circular, is wholly within thecentral space between the tubes H. The covering-plate B has anupwardly-extendin g flange is, which forms a tray for water, which isgradually evaporated by the heat from the burner. The vapor thusgenerated commingles with the air driven off in a heated condition fromthe burner, and as this burner is especially designed as a heating onethe unpleasant efiect of dry heat is avoided. In other respects theburner is practically the same as the one before described.

I claim as my invention- 1. In a gas-burner, the following elements incombination, viz., a base-plate having a series of holes and raisedsides and a coverin g-plate with nozzles which register with the saidholes in the base-plate, a duct to convey gas and air to the saidreceptacle, and tubes which pass through the nozzles and the holes inthe base-plate and are fastened therein, the said tubes having aperturesin their Walls for the admission of the mixture of gas and air to theinterior of the said tubes, substantially as specified.

2. In a gas-burner, a base-plate having a series of holes therein andraised sides, and a covering-plate with nozzles,.Which rests on aroundthe tubes to distribute the mixture of air and gas equally to thevarious tubes, substantially as specified.

CHARLES HAFFOKE.

Vitnesses:

DANL. FISHER, JOHN L. HERB.

